Pipe-wrench.



W. N. FESSENDEN.

PIPE WRENCH. APPLICATION FILED DBO. 9, 1912.

Patented Apr. 1, 1913;

hiNF'essenderf.

narra- WILLIAM N. FESSEINDEN, OF KINGSTON, NEW YORK.

PIPE-WRENCH.

Specification of Letters Patent.

Patented Apr. 1, 1913.

Application filed December 9, 1912. Serial No. 735,685.

at Kingston, in the county of Ulster and State of New York, haveinvented new and useful Improvements in Pipe-Wrenches, of

- which the following is a specification.

My invention relates to pipe-wrenches,

and consists more particularly in certain improvements by means of whichI provide a very efficient andconvenient wrench, especially adapted forplumbers use .on polished pipes, the surfaces of which must not bemarred by the wrench. I

The construction of the wrench andthe features which I believe to benovel are illustrated in the accompanying drawings, in which 7 Figure 1is a side elevation of thedevice; Fig. -2is a rear view of the same, thelower part of the handle being bro-ken away; Fig. 3 is a centralvertical section, and Fig. 4; a view similar to Fig. 1, but showing ajaw adapted to fit larger sizes of pipes, substituted for the smallersize.

In these views, 1 represents the handle and 2 the head of the wrench,which is pivoted on the handle by the bolt 3 passing through a slot 4 inthe handle, so as to permit of a slight player relative longitudinalmovement between the said parts in the operation of the wrench. Theouter end of the handle is formed into acurved eccentric surface 5,which bears against a co-, operating surface 6 on the head. 3 On thefront side of the handle are formed a pair of ears 7, between which ispivotedone' end of a fiat band or strip 8, preferably. made'of thinspring steel. The outer end of the head 2 is recessed, either in V-shapeas shown at 9 or 1n a concave curve, and a shoe or jaw 10 1s fitted intosald recess. The face of face of the jaw, both the pad and jaw beingsecured to the head by a transverse bolt 15. On the back side of thehead are formed a plurality of recesses, notches or hooks 16, with whichthe other end of the strip or band 8 is adapted to be engagedafter'having been passed around the pipe. For this purpose and to allowof adjustment for different sizes of pipe, the free end of the band 8carries a pair of cross-pins 17. To further accommodate pipes ofdifferent diameters, thef'shoe or jaw 10 is made interchangeablewithbthers, the concave recesses in the faces of which are of largersize, as shown in Fig. 4. Thus, by providing a set of several jaws witheach handle and head and, if desired, also one or more bands 8 ofdifferent lengths, the wrench is adapted for a considerable variety ofwork.

The mode of operation. of the wrench will be obvious. After the band hasbeen placed around a pipe and engaged with the head by one of itscross-pins, the handle is swung in one direction to cause the pipe 4 tobe firmly clamped between the band and padded jaw, by thera'mming actionof the surfaces 5 and 6, and in the other direction to loosen the gripon the pipe and permit the wrench to be shifted around preparatory totaking a fresh grip.

While have illustrated and described the preferred form, it will beobvious that certain modifications may be made in the construction ofthe wrench, without departing from the spirit of my invention. Forexample, the band 8 might be pivotedon the head 2 and adjustably engagethe handle with itsf'ree end instead of, as shown, being pivoted on thehandle and adjustably engagi g the head with its free end.

'Havlng thus described my invention,

what I claim is A pipe-wrench comprising a handle, a recessed headpivoted thereto, a pipe-engaging jaw fitting said recess, a padextending over the face and ends of said jaw, a bolt passingtransversely through the ends of said pad, and-through said jaw and headto detachably. secure said jaw andpad to said head, and a flexiblepipe-encircling member extending from said handle to said head,substantiallyas shown and described.

In testimony whereof I have hereunto set my hand in presence of twosubscrib ing witnesses- WILLIAM N. FESSENDEN.

Witnesses:

Jos. M. FowLER, N. H. FESSENDEN.

